Having the same issue in 5.9.0-050900rc6-generic.
Error when installing the kernel: Building module: cleaning build area... make -j4 KERNELRELEASE=5.9.0-050900rc6-generic -C /lib/modules/5.9.0-050900rc6-generic/build M=/var/lib/dkms/bcmwl/6.30.223.271+bdcom/build......(bad exit status: 2) ERROR (dkms apport): kernel package linux-headers-5.9.0-050900rc6-generic is not supported Error! Bad return status for module build on kernel: 5.9.0-050900rc6-generic (x86_64) Consult /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log for more information. ...done. The log /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/make.log: DKMS make.log for bcmwl-6.30.223.271+bdcom for kernel 5.9.0-050900rc6-generic (x86_64) Jum 25 Sep 2020 04:56:26 WIB make: Entering directory '/usr/src/linux-headers-5.9.0-050900rc6-generic' CFG80211 API is prefered for this kernel version Using CFG80211 API AR /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/built-in.a CC [M] /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.o CC [M] /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o CC [M] /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_iw.o CC [M] /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.o /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c: In function ‘osl_reg_map’: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:949:10: error: implicit declaration of function ‘ioremap_nocache’; did you mean ‘ioremap_cache’? [-Werror=implicit-function-declaration] 949 | return (ioremap_nocache((unsigned long)pa, (unsigned long)size)); | ^~~~~~~~~~~~~~~ | ioremap_cache /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.c:949:10: warning: returning ‘int’ from a function with return type ‘void *’ makes pointer from integer without a cast [-Wint-conversion] 949 | return (ioremap_nocache((unsigned long)pa, (unsigned long)size)); | ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_attach’: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:593:20: error: implicit declaration of function ‘ioremap_nocache’; did you mean ‘ioremap_cache’? [-Werror=implicit-function-declaration] 593 | if ((wl->regsva = ioremap_nocache(dev->base_addr, PCI_BAR0_WINSZ)) == NULL) { | ^~~~~~~~~~~~~~~ | ioremap_cache /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:593:18: warning: assignment to ‘void *’ from ‘int’ makes pointer from integer without a cast [-Wint-conversion] 593 | if ((wl->regsva = ioremap_nocache(dev->base_addr, PCI_BAR0_WINSZ)) == NULL) { | ^ /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_pci_probe’: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:780:2: warning: this ‘if’ clause does not guard... [-Wmisleading-indentation] 780 | if ((val & 0x0000ff00) != 0) | ^~ /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:782:3: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the ‘if’ 782 | bar1_size = pci_resource_len(pdev, 2); | ^~~~~~~~~ /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:783:15: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 783 | bar1_addr = (uchar *)ioremap_nocache(pci_resource_start(pdev, 2), | ^ /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_ioctl’: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:1654:6: error: implicit declaration of function ‘segment_eq’ [-Werror=implicit-function-declaration] 1654 | if (segment_eq(get_fs(), KERNEL_DS)) | ^~~~~~~~~~ In file included from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.c:40: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.c: In function ‘wl_set_auth_type’: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.h:52:5: warning: this statement may fall through [-Wimplicit-fallthrough=] 52 | if (wl_dbg_level & WL_DBG_DBG) { \ | ^ /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.c:816:3: note: in expansion of macro ‘WL_DBG’ 816 | WL_DBG(("network eap\n")); | ^~~~~~ /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_cfg80211_hybrid.c:817:2: note: here 817 | default: | ^~~~~~~ /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c: In function ‘wl_reg_proc_entry’: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:3376:58: error: passing argument 4 of ‘proc_create_data’ from incompatible pointer type [-Werror=incompatible-pointer-types] 3376 | if ((wl->proc_entry = proc_create_data(tmp, 0644, NULL, &wl_fops, wl)) == NULL) { | ^~~~~~~~ | | | const struct file_operations * In file included from /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.c:38: ./include/linux/proc_fs.h:102:31: note: expected ‘const struct proc_ops *’ but argument is of type ‘const struct file_operations *’ 102 | extern struct proc_dir_entry *proc_create_data(const char *, umode_t, | ^~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors make[1]: *** [scripts/Makefile.build:283: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/shared/linux_osl.o] Error 1 make[1]: *** Waiting for unfinished jobs.... cc1: some warnings being treated as errors make[1]: *** [scripts/Makefile.build:283: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build/src/wl/sys/wl_linux.o] Error 1 make: *** [Makefile:1784: /var/lib/dkms/bcmwl/6.30.223.271+bdcom/build] Error 2 make: Leaving directory '/usr/src/linux-headers-5.9.0-050900rc6-generic' -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to bcmwl in Ubuntu. https://bugs.launchpad.net/bugs/1869860 Title: Ubuntu mainline kernel v5.6 not supported by bcmwl-kernel-source Status in bcmwl package in Ubuntu: Confirmed Bug description: I am using Ubuntu 18.04 with kernel 4.15.0-91-generic and packet bcmwl-kernel-source version 6.30.223.271+bdcom-0ubuntu5~18.04.1 from bionic-updates. Wifi BCM43228 802.11a/b/g/n [14e4:4359] is fine working. But working stops after installing ubuntu mainline kernel v5.6 (image, modules, headers-all, headers-amd64). While installing kernel there were error messages regarding dkms and no dkms-modul was built. bcmwl-kernel-source should support kernel v5.6 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/bcmwl/+bug/1869860/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp